From 836252bfa6338ca29bbfe3c9ccc8798ea32140d2 Mon Sep 17 00:00:00 2001
From: Jingning Han <jingning@google.com>
Date: Fri, 21 Feb 2014 18:25:43 -0800
Subject: [PATCH] Periodically update mode and mv costs
Skip coefficient cost update in non-RD mode decision setting. Allow
periodical mode and motion vector cost update. Currently every other
8 frames. The increment runtime is a constant number. Hence more
visible for CIF resolution, while negligible for 1080p.
Speed -6 compression performance for rtc set is improved by 4.5%.
Change-Id: I27e0ad7c521fcc2af1d825582cbdd1a27ac4c323
---
vp9/encoder/vp9_rdopt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/vp9/encoder/vp9_rdopt.c b/vp9/encoder/vp9_rdopt.c
index 70f9fab257..44dedb487a 100644
--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -295,13 +295,15 @@ void vp9_initialize_rd_consts(VP9_COMP *cpi) {
set_block_thresholds(cpi);
- fill_token_costs(x->token_costs, cm->fc.coef_probs);
-
if (!cpi->sf.use_pick_mode) {
+ fill_token_costs(x->token_costs, cm->fc.coef_probs);
+
for (i = 0; i < PARTITION_CONTEXTS; i++)
vp9_cost_tokens(x->partition_cost[i], get_partition_probs(cm, i),
vp9_partition_tree);
+ }
+ if (!cpi->sf.use_pick_mode || (cm->current_video_frame & 0x07) == 1) {
fill_mode_costs(cpi);
if (!frame_is_intra_only(cm)) {
--
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